ISSUED DATE :2006/04/14 REVISED DATE :
GE2138
Description
1 . 5 A C M O S L o w D ro p o u t Vo l t a g e R eg u l a t o r
The GE2138 series of positive, linear regulators feature low quiescent current (45 A typ.) with low dropout voltage, making them ideal for battery applications. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. The GE2138 is stable with an output capacitance of 4.7 F or greater.
Features & Low Dropout Voltage Very
Functional Block Diagram
&Guaranteed 1.5A output &Over-Temperature Shutdown &Current Limiting &Short Circuit Current Fold-back &Highly Accurate± 1.5% &Low Temperature Coefficient
Applications & Battery Powered Widgets
&Instrumentation &Wireless Devices &PC Peripherals &Portable Electronics
Package Dimensions
REF. A b c D E L4 L5
Millimeter Min. Max. 4.40 4.80 0.76 1.00 0.36 0.50 8.60 9.00 9.80 10.4 14.7 15.3 6.20 6.60
REF. c1 b1 L e L1 Ø A1
Millimeter Min. Max. 1.25 1.45 1.17 1.47 13.25 14.25 2.54 REF. 2.60 2.89 3.71 3.96 2.60 2.80
Typical Application Circuit
GE2138
Page: 1/5
ISSUED DATE :2006/04/14 REVISED DATE :
Absolute Maximum Ratings
Parameter
Input Max Voltage Output Current Output Voltage Operating Ambient Temperature Junction Temperature Maximum Junction Temperature Thermal Resistance Internal Power Dissipation EDS Classification
*Measure jc on backside center of tab.
Symbol
VIN IOUT VOUT Topr Tj Tj Max jc (Non-Conductive Epoxy)* ja PD
Ratings
8 PD/( VIN- VO) 1.5~5.0 -40 ~ +85 -40 ~ +125 150 24 80 1.6 B
Unit
V A V : : : : /W : /W W
Electrical Characteristics VIN=VOUT(T)+2V, Ta=25 : unless otherwise noted
Parameter Output Voltage Output Current Current Limit Load Regulation Dropout Voltage Quiescent Current Ground Pin Current Line Regulation Input Voltage
Over Temperature Shutdown Over Temperature Hysterisis
Symbol VOUT (E)
(Note1)
Condition
IO=1mA VO>1.2V VO>1.2V VIN=VOUT(T)+2V, IO=1mA to 1.5A IO=1.5A VO=VOUT(E)-2% 1.4V
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